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Rosasite
Rosasite

Bustamite
Bustamite



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X
Rosasite
X
Bustamite

Rosasite and Bustamite Optical Properties

Optical Properties

Luster

Silky, Vitreous
Vitreous

Pleochroism

Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue
Weak

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.672-1.6881.662-1.707
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Triclinic

Birefringence

0.139-0.1430.013-0.015
0 0.296
👆🏻

Clarity

-
Transparent

Rosasite and Bustamite Optic Character

Rosasite and Bustamite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Rosasite and Bustamite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Rosasite and Bustamite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Rosasite and Bustamite Transparency

Similar to their colors, Rosasite and Bustamite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Rosasite is while Rosasite is in appearance.